Calcite Crystals from a Water-Tank

Russell F. Gwinnell1
Demonstrator in Geology, Imperial College of Science and Technology
Communicated byDr. C. G. Cullis 1The author of this note died suddenly on March 15, 1913, at the early age of 33 years.

Mineralogical Magazine; July 1913 v. 16; no. 77; p. 345-347; DOI: 10.1180/minmag.1913.016.77.07
© 1913, The Mineralogical Society
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